function getIMG()
{
 datetoday = new Date();
 timenow=datetoday.getTime();
 datetoday.setTime(timenow);
 thehour = datetoday.getHours();

 if (thehour > 22)
  display = "midnight.jpg";
 else if (thehour > 18)
  display = "evening.jpg";
 else if (thehour > 8)
  display = "noon.jpg";
 else if (thehour > 5)
  display = "morning.jpg";
 else if (thehour > 1)
  display = "midnight.jpg";
 else
  display = "midnight.jpg";

 var image = '<';  image+='img alt="" src=img/idx-img/' + display + ' \/';  image+='>';

 document.write(image);
}